Mike Mueller [Thu, Jan 15, 2004 at 05:02:29AM +0100]:

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I came up with a simple solution using a dict that holds all the messages in different languages. [...] How do you thing about it?

It's really nice. Any particular reasons you didn't use gettext? Just that I didn't know that it exists. Well, I didn't look for it. After looking at it, the problem is that gettext assumes that there is a global language that is valid for the the whole application at any given

At 09:02 15.01.2004 +0100, Michal wrote: point in time. I would like to have two (or more) languages at the same time. Depending on the preferred language of the current visitor, each session has "its" language. Even with my approach, using the lang attribute on the module level, will not work if asynchronous programming is involved. Since I am going to use deferreds, time is 'not linear any more'. So changing the lang attribute of a module back and forth might have effects on different sessions(?) A solution would be to make the lang a session attribute: At the first encounter of the session do: request = context.locate(iwoven.IRequest) session = request.getSession() lang = getattr(session, 'lang', currentLang) later you might want to change the language: request = context.locate(iwoven.IRequest) session = request.getSession() session.lang = currentLangNow Extend the relevant parts of freeform.py (and other modules that return messages) to: class PasswordValidator(components.Adapter): __implements__ = IInputValidator, def validate(self, context, boundTo, data): """Password needs to look at two passwords in the data, """ request = context.locate(iwoven.IRequest) session = request.getSession() pw1 = data[0] if pw1 == '': raise formless.InputError(multilangDict['emptyPasswd'][session.lang]) #changed args = context.locate(iwoven.IRequest).args binding = context.locate(formless.IBinding) pw2 = args.get("%s____2" % binding.name, [''])[0] if pw1 != pw2: raise formless.InputError(multilangDict['passwdDontMatch'][session.lang]) #changed return self.original.coerce(data[0]) This should give you the possibility to guess the language from request.getHeader('user-agent') and also let the visitor to select his/her preferred languages (you know those small icons with flags). I don't know if this is the best way to do it. If yes, is there any way that it makes it into the source? It would essentially mean adding this two lines to all the methods that return some kind of message to the visitor, provided all of the relevant methods take a context argument. And of course it means using multilangDict['phraseKey'][session.lang] instead of a message English message consistently . I would volunteer to implement this and could also make the German messages. Mike

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Mike : After looking at it, the problem is that gettext assumes that there is a global language that is valid for the the whole application at any given point in time. I would like to have two (or more) languages at the same time. Depending on the preferred language of the current visitor, each session has "its" language.

Christopher (radix): You sure about that? I'm certain I remember a conversation where someone else said the same thing, but was successfully told otherwise (with an explanation). I don't remember the details, but maybe someone else does (or you'll notice them if you look deeper ;)

Do you mean gettext is not global for whole application or it is not possible to store the language in a session? I guess the latter. This boils down to problems with unique session data. In the December archive of twisted-web I found <http://www.twistedmatrix.com/pipermail/twisted-web/2003-December/000045.html>http://www.twistedmatrix.com/pipermail/twisted-web/2003-December/000045.html which a essentially says, as long as session data are always retrieved from request and ./twistd -oy script.tac is used it should work. I hope this applies to newov. Getting session straight is very important if people need to have different views on a page. This is a rather common scenario for dynamic pages, I think. Mike